This game is a celebration of the vagina and its name ("vagina"). Work with me here.
I remember when I was young, my younger brother, Dave, was in a deli with me and kept looking at the drinks in the refrigerator there. He had a nervous, wanting look, and finally I asked him what he was thinking. He said, quietly, "Will you take an Orangina up to the counter for me [which he pronounced "jina" with a hard "i" instead of "jeena" with a hard "e"]? I'm too embarrassed to do it myself but I love that drink." How sad is it that even words that sound like "vagina" should be shameful? Hence my game.
Create a new word adapted from the word "Vagina," define it, and then the next person to post uses that word in a sentence, then creates a word of their own adapted from "Vagina," defines it, and leaves it for the next person, etc. etc.
I'll start: "Vaginerous" - Adj. Generous to a vagina or vaginas.